DescriptionThis paper proposes a model of group culture, faultlines and outcomes to explain how group faultlines can help solidify a group culture of creativity and influence performance in diverse workgroups. The hypotheses are tested using an archival field methodology and qualitative and quantitative data from 74 workgroups in a Fortune 500 company. The results reveal that the moderating role of actual culture in the positive impact that desired culture has on group performance is significant for groups exhibiting strong information faultline strength. The implications of this findings for diversity training, HR programs etc., are discussed with an emphasis on information diversity.